Best Router For Low SNR?

arobertson676 · 20 Aug 2011 at 07:39

I have been trying to get a great router for low SNR. I have tried a Billion 7800 but it is awful at holding a low SNR. I have an old SpeedTouch 585v6 which is good but it is quite old now and it has a bug where the internet turns off, but not the DSL. This is fixed in later firmwares but you can't tweak the SNR.

Can anybody suggest some more routers that I could try?

Efour · 20 Aug 2011 at 09:38

When i had ADSL i had a Belkin, cant remember the exact one sorry, but it would hold a signal down to silly low levels. Which at the time ment i could sync at 7mbits rather than the 5mbits that was at 6db..

People always slated the Belkin stuff but in this respect it was amazing for me at least

Efour · 20 Aug 2011 at 09:41

Manufacturers SKU: F5D7632UK4A

90% sure it was that one... but id check with other users of it before buying

arobertson676 · 20 Aug 2011 at 10:50

What was your attenuation? I was really looking for one I could tweak the SNR with and I am pretty sure the 7632 can't. I know the 7633 can though.

Thanks.

Efour · 20 Aug 2011 at 11:45

oh god hmm i was about 1,7km out it must have been around 44.. it was before adsl2... its so long ago

RSR · 20 Aug 2011 at 13:18

I'd recommend one that's based around a Broadcom chip set as from my experiences these seem to have been the most stable. I would personally avoid Alcatel and Conexant based routers.

IIRC You can't tweak the SNR ratio on a ADSL2+ line like you can on a ASDL MAX line.

A 44db downstream attenuation would suggest your line is around 3.2KM in length.

I have a 28/29db downstream attenuation which rought aroun 1.8KM from my local exchange.

arobertson676 · 20 Aug 2011 at 14:04

I need a Broadcom to tweak the SNR which is what I am looking for.

Here is what it needs to have:
Broadcom chipset
Tweakable SNR
Good at low SNR (under 4dB)
Made in the last couple of years

Not necessary, but that I would like:
WiFi (N preferably)

mi9tchy · 20 Aug 2011 at 15:20

dg834n with dgteam firmware?

arobertson676 · 20 Aug 2011 at 16:39

Possibly, but looking to get one from a shop (preferably Amazon) where I can return it if it doesn't help.

theipodkid · 20 Aug 2011 at 17:13

arobertson676 said:
I have been trying to get a great router for low SNR. I have tried a Billion 7800 but it is awful at holding a low SNR. I have an old SpeedTouch 585v6 which is good but it is quite old now and it has a bug where the internet turns off, but not the DSL. This is fixed in later firmwares but you can't tweak the SNR.

Can anybody suggest some more routers that I could try?

I'm surprised the Billion bipac 7800n did not work for you.

I have a long line myself and was only getting over 2MB, but after getting the Billion bipac 7800n I mange to get a stable 5.80mb and my upload went up as well. I have a stable line noise of 1dB.

Do you still have the Billion bipac 7800n?

arobertson676 · 20 Aug 2011 at 17:56

It was a 7800 not N. I do have it but it's sealed in a box ready to go back to Amazon.

arobertson676 · 20 Aug 2011 at 22:42

What settings did you use? My Billion can't even hold a 4dB connection...

Bane · 20 Aug 2011 at 23:09

For a Broadcom chipset Netgear has a few models.

There is the old DG834GT, but price seems high.

Out of the current model range starting with DGNxx00 (replace xx with numbers) I'm sure some use Broadcom, but don't know which exactly.

arobertson676 · 21 Aug 2011 at 13:13

Has anybody got a router that they can confirm holds an SNR lower than 5dB? If it helps my current line stats are:

Uptime: 0 days, 21:08:17

Modulation: G.992.1 Annex A

Bandwidth (Up/Down) [kbps/kbps]: 448 / 4,576

Data Transferred (Sent/Received) [MB/GB]: 151.44 / 1.95

Output Power (Up/Down) [dBm]: 11.5 / 19.5

Line Attenuation (Up/Down) [dB]: 24.0 / 41.0

SN Margin (Up/Down) [dB]: 24.0 / 14.5

Vendor ID (Local/Remote): TMMB /

Loss of Framing (Local/Remote): 0 / 0

Loss of Signal (Local/Remote): 0 / 0

Loss of Power (Local/Remote): 0 / 0

Loss of Link (Remote): 0

Error Seconds (Local/Remote): 16,354 / 0

FEC Errors (Up/Down): 0 / 0

CRC Errors (Up/Down): 70 / 898,705

HEC Errors (Up/Down): 30 / 880,085

The SpeedTouch seems to report massive amounts of errors so they can be ignored.

theipodkid · 21 Aug 2011 at 14:47

arobertson676 said:
It was a 7800 not N. I do have it but it's sealed in a box ready to go back to Amazon.

Oh sorry missed read it /:

Here is mine with a Bibac 7800n

DSP Firmware Version A2pB025f.d22k
DMT Status No Defect
Operational Mode ADSL2+
Upstream 1079
Downstream 6650
SNR Margin(Upstream) 5.2
SNR Margin(Downstream) 1.9
Line Attenuation(Upstream) 27.0
Line Attenuation(Downstream) 52.0

Mine went from under 3mb to what it is now. You should get a 7800n and try that if you can and make sure you have it up to date.

Have you removed your bell wire and are you connected too the master socket or extension socket?

arobertson676 · 21 Aug 2011 at 14:57

I could, but I believe they are exactly the same apart from the wireless. I am currently looking at a Netgear DGN2200. Does anybody have any experience?

arobertson676 · 21 Aug 2011 at 14:59

By the way, what's the up time on your router? I need one that can hold for more than three days as I am on the BT IP profile system.

Thanks.

arobertson676 · 21 Aug 2011 at 17:50

Does anybody know how good the 7800N is at at a low SNR (under 5dB)? Is it better than a 7800?

Does anybody have any other routers that they could suggest?

theipodkid · 21 Aug 2011 at 19:56

arobertson676 said:
By the way, what's the up time on your router? I need one that can hold for more than three days as I am on the BT IP profile system.

Thanks.

Well my mine gets turned of every night so it's on for about 15h then off. But when I turn it back on I never have less speed or higher SNR.

If you haven't remove the bell wire & add a Iplate if it can be uses with your master socket. If you ain't connected too your master socket it will be useless using a Iplate.

arobertson676 · 21 Aug 2011 at 19:58

Ok, but as far as I know the 7800 and the 7800N are the same. Is the 7800N better at a low SNR?